2660387142 has 32 divisors (see below), whose sum is σ = 6114873600. Its totient is φ = 755862048.

The previous prime is 2660387129. The next prime is 2660387143. The reversal of 2660387142 is 2417830662.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660387142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660387143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169417 + ... + 184452.

It is an arithmetic number, because the mean of its divisors is an integer number (191089800).

Almost surely, 2^2660387142 is an apocalyptic number.

2660387142 is an abundant number, since it is smaller than the sum of its proper divisors (3454486458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2660387142 is a wasteful number, since it uses less digits than its factorization.

2660387142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354060.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 2660387142 is about 51578.9408770673. The cubic root of 2660387142 is about 1385.6331983717.

The spelling of 2660387142 in words is "two billion, six hundred sixty million, three hundred eighty-seven thousand, one hundred forty-two".